I do not use the battery and use the normal Aldi batteries. I've bought 2 - both were just as bright or dark.
The quality of light is otherwise exceedingly well. The light cone ungewönlich large and thus there is a beautiful, even and very large light cone for a very pleasant illumination with useful light output. 180 lumens are not really bad for a flashlight.
I have the lamp with a 300 lumen headlamp compared - that's extremely bright and appears extremely unpleasant. To this extent, I can recommend buying absollut, also because of the light beam and the beautiful uniform large-area light distribution makes the torch for the other companion in the dark bearable.